Single mode bend insensitive fiber for use in fiber optic guidance applications
US4838643A · kind A · utility
192Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Mar 23, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4457
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A double-clad single mode optical fiber with a depressed inner cladding exhibits increased resistance to attenuation increases resulting from small radius bends and lower attenuation sensitivity to temperature changes when the mode field diameter is less than 7 um and the ratio of the radius of the inner cladding to the radius of the core is at least 6.5 to one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.